DTC U212E-00: Communication Error With Door-Electrical Supply Unit (Driver's Side) [Vehicle Control Module]: Outline

WARNING: This page is about a different car, the 2020 Mazda CX-30. However, it is still accessible from the selected car via links, so may be relevant.

DTC U212E:00 (VEHICLE CONTROL MODULE) DETECTION CONDITION AND POSSIBLE CAUSE

System malfunction location	Communication error with door-electrical supply unit (driver's side)
Detection condition	The vehicle control module (VCM) cannot receive CAN signal from door-electrical supply unit (driver's side) for 10 s.
Fail-safe	(See DTC TABLE [VEHICLE CONTROL MODULE (US)] .)
Possible cause	Malfunction in CAN communication line between vehicle control module (VCM) and door-electrical supply unit (driver's side) Door-electrical supply unit (driver's side) malfunction Vehicle control module (VCM) malfunction (built into body control module (BCM)) Body control module (BCM) malfunction
System wiring diagram	Not applicable